/Engine/Source/Runtime/MovieScene/Public/EntitySystem/MovieSceneInstanceRegistry.h
[FInstanceHandle](API\Runtime\MovieScene\EntitySystem\FInstanceHandle) AllocateSubInstance ( [IMovieScenePlayer](API\Runtime\MovieScene\IMovieScenePlayer) * Player, [FMovieSceneSequenceID](API\Runtime\MovieScene\FMovieSceneSequenceID) SequenceID, [FRootInstanceHandle](API\Runtime\MovieScene\EntitySystem\FRootInstanceHandle) RootInstance, [FInstanceHandle](API\Runtime\MovieScene\EntitySystem\FInstanceHandle) ParentInstanceHandle )